Explanation:

• Generation of pig induced pluripotent stem cells using an extended pluripotent stem cell culture system.
• Pigs have emerged as one of the most popular large animal models in biomedical research, which in many cases is considered as a superior choice over rodent models. 
• It was controversially achieved by a team at the Southern University of Science and Technology, in Shenzhen, which recruited couples in an effort to create the first gene-edited babies. They planned to eliminate a gene called CCR5 in hopes of rendering the offspring resistant to HIV, smallpox, and cholera.
• Domesticated animals such as dogs, pigs and cows are considered excellent models for long-term experiments in regenerative medicines, and biomedical research in general, because of their similarities in physiology with humans compared to the laboratory mouse or rat.

Hence all statements are correct.

For More: https://www.eurekalert.org/pub_releases/2017-01/cp-sus011917.php

For More: https://www.technologyreview.com/2018/11/25/138962/exclusive-chinese-scientists-are-creating-crispr-babies/